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Basic information about PMM file

When there is a problem with opening files with the file extension PMM（*.PMM or *.pmm）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the PMM file yourself.

There are 2 file types using the PMM file extension in our database. In the further part of this page, you will find detail information about all the PMM file with their brief description and a list of programs that support PMM file sorted by operating systems. The table below provides useful information about the PMM file extension. It answers questions such as:
  • What is the PMM file?
  • How to open a PMM file?
  • What programs do I need to open a PMM file?
  • What programs help to create and edit a PMM file?
  • How to convert PMM files to another file format?
  • How to convert another files to PMM file format?


1.Detail information about PMM file extension: MikuMikuDance PolygonMovieMaker File

File type MikuMikuDance PolygonMovieMaker File Category Data Files
Developer MikuMikuDance File format Binary
Description PMM file is a MikuMikuDance PolygonMovieMaker File developed by MikuMikuDance. 3D dance animation project created by MikuMikuDance, a dance animation program originally created in Japanese; contains model, animation, and music settings for a 3D dance routine; supports multiple dancers in the same scene.
Software programs that will open, edit or convert PMM files

Windows		 MikuMikuDance


2.Detail information about PMM file extension: Pegasus Mail Mailbox File

File type Pegasus Mail Mailbox File Category Data Files
Developer David Harris File format Text and Binary
Description PMM file is a Pegasus Mail Mailbox File developed by David Harris.
Software programs that will open, edit or convert PMM files

Windows		 Pegasus Mail
Aid4Mail



How to convert PMM files to another file format?

There are 3 records in our database eligible for PMM files to another file format conversion. If you want to achieve PMM to another files conversion, you may use the option.

PMM to AVI PMM to JPG PMM to PMX


How to convert another files to PMM file format?

There are 2 records in our database eligible for another files to PMM file format conversion. If you want to achieve another files to PMM conversion, you may use the option.

PMX to PMM PMD to PMM


Can't open a PMM file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.PMM”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the PMM extension without any issue.


Where I can download the application that support PMM file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of PMM files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a PMM file?

The reasons for the lack of the ability to open a PMM file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a PMM file. If there is still something wrong, you might want to check:

  • Whether the PMM file is damaged.
  • Whether the PMM file is incorrectly linked in the registry entries.
  • Whether the PMM file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the PMM file format is incompletely.
  • Whether the PMM file is infected.
  • Whether the drivers of the equipment used for opening a PMM file are up to date.
  • Whether your computer has enough hardware resources to open a PMM file.

If the PMM file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.